358 alGEbra De mystif ieD
- −0.1x^2 + 1.1x − 2.8 = 0
5.^1
5
1
5
xx^2 +−= 60
6.^1
6
2
3
16
3
xx^2 −−= 0
- xx^21
2
−−= 30
- −+^3 +=
2
1
2
xx^210
- 6x^2 + 18 x − 24 = 0
- − 10 x^2 − 34 x − 12 = 0
✔SOLUTIONS
- −−+=
−− −+ =−
+− =
+−=
xx
xx
xx
xx
x
2
2
2
30 0
30 0
30 0
650
()
()()
660 50
66
=−=
−−
x
++
=− =
55
xx 65
- −+=
−− +=−
−=
−+=
−
9250
9250
9250
35350
3
2
2
2
x
x
x
xx
x
()
()()
550 350
55
=+=
++
x
−−
==−
==−
55
35 35
5
3
5
3
xx
xx